The art on these posters is something to behold – even though the messages were meant for specific dates and times, the artists out-did themselves. Something that is printed with a date is considered to be ephemeral – meant for a specific time and disposable when that time is past. These posters fall in to that category, but possibly because of their superb execution were saved from destruction.
If you have valuable prints or posters – they should be stored in sleeves and boxes that are of archival quality. We have polyester sleeves and acid-free boxes in many sizes. Follow links to view.
https://www.bagsunlimited.com/category/214/mylar-polyester-sleeves
https://www.bagsunlimited.com/category/1278/flat-poster-storage